Trait dynamic_cast::SupportsInterfaces

pub unsafe trait SupportsInterfaces {
    // Required method
    fn get_interface_metadata(
        &self,
        dyn_interface_id: TypeId
    ) -> Option<BoxedInterfaceMetadata>;
}

Provides runtime information about implemented traits.

Safety

An implementer does not allowed to return from get_interface_metadata something except None in all cases, excluding the case when dyn_interface_id is a type id of dyn SomeTrait, and the implementer implements SomeTrait. If get_interface_metadata returns Some(SomeTrait metadata), it should return appropriate correct metadata for self as dyn SomeTrait thick pointers.

Required Methods

fn get_interface_metadata( &self, dyn_interface_id: TypeId ) -> Option<BoxedInterfaceMetadata>

Implementors